'use client';

import { Slot } from '@radix-ui/react-slot';
import { cva, VariantProps } from 'class-variance-authority';
import { PanelLeftIcon } from 'lucide-react';
import * as React from 'react';
import { MouseEvent } from 'react';

import { Button } from '@/vdb/components/ui/button.js';
import { Input } from '@/vdb/components/ui/input.js';
import { Separator } from '@/vdb/components/ui/separator.js';
import { Sheet, SheetContent, SheetDescription, SheetHeader, SheetTitle } from '@/vdb/components/ui/sheet.js';
import { SidebarContext } from '@/vdb/components/ui/sidebar-context.js';
import { Skeleton } from '@/vdb/components/ui/skeleton.js';
import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/vdb/components/ui/tooltip.js';
import { useIsMobile } from '@/vdb/hooks/use-mobile.js';
import { cn } from '@/vdb/lib/utils.js';

const SIDEBAR_COOKIE_NAME = 'sidebar_state';
const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7;
const SIDEBAR_WIDTH = '16rem';
const SIDEBAR_WIDTH_MOBILE = '18rem';
const SIDEBAR_WIDTH_ICON = '3rem';
const SIDEBAR_KEYBOARD_SHORTCUT = 'b';

function useSidebar() {
    const context = React.useContext(SidebarContext);
    if (!context) {
        throw new Error('useSidebar must be used within a SidebarProvider.');
    }

    return context;
}

const SidebarProvider = React.forwardRef<
    HTMLDivElement,
    React.ComponentProps<'div'> & {
        defaultOpen?: boolean;
        open?: boolean;
        onOpenChange?: (open: boolean) => void;
    }
>(
    (
        {
            defaultOpen = true,
            open: openProp,
            onOpenChange: setOpenProp,
            className,
            style,
            children,
            ...props
        },
        ref,
    ) => {
        const isMobile = useIsMobile();
        const [openMobile, setOpenMobile] = React.useState(false);

        // This is the internal state of the sidebar.
        // We use openProp and setOpenProp for control from outside the component.
        const [_open, _setOpen] = React.useState(defaultOpen);
        const open = openProp ?? _open;
        const setOpen = React.useCallback(
            (value: boolean | ((value: boolean) => boolean)) => {
                const openState = typeof value === 'function' ? value(open) : value;
                if (setOpenProp) {
                    setOpenProp(openState);
                } else {
                    _setOpen(openState);
                }

                // This sets the cookie to keep the sidebar state.
                document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`;
            },
            [setOpenProp, open],
        );

        // Helper to toggle the sidebar.
        const toggleSidebar = React.useCallback(() => {
            return isMobile ? setOpenMobile(open => !open) : setOpen(open => !open);
        }, [isMobile, setOpen, setOpenMobile]);

        // Adds a keyboard shortcut to toggle the sidebar.
        React.useEffect(() => {
            const handleKeyDown = (event: KeyboardEvent) => {
                if (event.key === SIDEBAR_KEYBOARD_SHORTCUT && (event.metaKey || event.ctrlKey)) {
                    event.preventDefault();
                    toggleSidebar();
                }
            };

            window.addEventListener('keydown', handleKeyDown);
            return () => window.removeEventListener('keydown', handleKeyDown);
        }, [toggleSidebar]);

        // We add a state so that we can do data-state="expanded" or "collapsed".
        // This makes it easier to style the sidebar with Tailwind classes.
        const state = open ? 'expanded' : 'collapsed';

        const contextValue = React.useMemo<SidebarContext>(
            () => ({
                state,
                open,
                setOpen,
                isMobile,
                openMobile,
                setOpenMobile,
                toggleSidebar,
            }),
            [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar],
        );

        return (
            <SidebarContext.Provider value={contextValue}>
                <TooltipProvider delayDuration={0}>
                    <div
                        data-slot="sidebar-wrapper"
                        style={
                            {
                                '--sidebar-width': SIDEBAR_WIDTH,
                                '--sidebar-width-icon': SIDEBAR_WIDTH_ICON,
                                ...style,
                            } as React.CSSProperties
                        }
                        className={cn(
                            'group/sidebar-wrapper has-data-[variant=inset]:bg-sidebar flex min-h-svh w-full',
                            className,
                        )}
                        ref={ref}
                        {...props}
                    >
                        {children}
                    </div>
                </TooltipProvider>
            </SidebarContext.Provider>
        );
    },
);
SidebarProvider.displayName = 'SidebarProvider';

function Sidebar({
    side = 'left',
    variant = 'sidebar',
    collapsible = 'offcanvas',
    className,
    children,
    ...props
}: React.ComponentProps<'div'> & {
    side?: 'left' | 'right';
    variant?: 'sidebar' | 'floating' | 'inset';
    collapsible?: 'offcanvas' | 'icon' | 'none';
}) {
    const { isMobile, state, openMobile, setOpenMobile } = useSidebar();

    if (collapsible === 'none') {
        return (
            <div
                data-slot="sidebar"
                className={cn(
                    'bg-sidebar text-sidebar-foreground flex h-full w-(--sidebar-width) flex-col',
                    className,
                )}
                {...props}
            >
                {children}
            </div>
        );
    }

    if (isMobile) {
        return (
            <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
                <SheetHeader className="sr-only">
                    <SheetTitle>Sidebar</SheetTitle>
                    <SheetDescription>Displays the mobile sidebar.</SheetDescription>
                </SheetHeader>
                <SheetContent
                    data-sidebar="sidebar"
                    data-slot="sidebar"
                    data-mobile="true"
                    className="bg-sidebar text-sidebar-foreground w-(--sidebar-width) p-0 [&>button]:hidden"
                    style={
                        {
                            '--sidebar-width': SIDEBAR_WIDTH_MOBILE,
                        } as React.CSSProperties
                    }
                    side={side}
                >
                    <div className="flex h-full w-full flex-col">{children}</div>
                </SheetContent>
            </Sheet>
        );
    }

    return (
        <div
            className="group peer text-sidebar-foreground hidden md:block"
            data-state={state}
            data-collapsible={state === 'collapsed' ? collapsible : ''}
            data-variant={variant}
            data-side={side}
            data-slot="sidebar"
        >
            {/* This is what handles the sidebar gap on desktop */}
            <div
                className={cn(
                    'relative h-svh w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear',
                    'group-data-[collapsible=offcanvas]:w-0',
                    'group-data-[side=right]:rotate-180',
                    variant === 'floating' || variant === 'inset'
                        ? 'group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]'
                        : 'group-data-[collapsible=icon]:w-(--sidebar-width-icon)',
                )}
            />
            <div
                className={cn(
                    'fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear md:flex',
                    side === 'left'
                        ? 'left-0 group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)]'
                        : 'right-0 group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)]',
                    // Adjust the padding for floating and inset variants.
                    variant === 'floating' || variant === 'inset'
                        ? 'p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]'
                        : 'group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r group-data-[side=right]:border-l',
                    className,
                )}
                {...props}
            >
                <div
                    data-sidebar="sidebar"
                    className="bg-sidebar group-data-[variant=floating]:border-sidebar-border flex h-full w-full flex-col group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:border group-data-[variant=floating]:shadow-sm"
                >
                    {children}
                </div>
            </div>
        </div>
    );
}

function SidebarTrigger({ className, onClick, ...props }: React.ComponentProps<typeof Button>) {
    const { toggleSidebar } = useSidebar();

    return (
        <Button
            data-sidebar="trigger"
            data-slot="sidebar-trigger"
            variant="ghost"
            size="icon"
            className={cn('h-7 w-7', className)}
            onClick={(event: MouseEvent<any>) => {
                onClick?.(event);
                toggleSidebar();
            }}
            {...props}
        >
            <PanelLeftIcon />
            <span className="sr-only">Toggle Sidebar</span>
        </Button>
    );
}

function SidebarRail({ className, ...props }: React.ComponentProps<'button'>) {
    const { toggleSidebar } = useSidebar();

    return (
        <button
            data-sidebar="rail"
            data-slot="sidebar-rail"
            aria-label="Toggle Sidebar"
            tabIndex={-1}
            onClick={toggleSidebar}
            title="Toggle Sidebar"
            className={cn(
                'hover:after:bg-sidebar-border absolute inset-y-0 z-20 hidden w-4 -translate-x-1/2 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:left-1/2 after:w-[2px] sm:flex',
                'in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize',
                '[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize',
                'hover:group-data-[collapsible=offcanvas]:bg-sidebar group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full',
                '[[data-side=left][data-collapsible=offcanvas]_&]:-right-2',
                '[[data-side=right][data-collapsible=offcanvas]_&]:-left-2',
                className,
            )}
            {...props}
        />
    );
}

function SidebarInset({ className, ...props }: React.ComponentProps<'main'>) {
    return (
        <main
            data-slot="sidebar-inset"
            className={cn(
                'bg-background relative flex min-h-svh flex-1 flex-col',
                'peer-data-[variant=inset]:min-h-[calc(100svh-(--spacing(4)))] md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:shadow-sm md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ml-2',
                className,
            )}
            {...props}
        />
    );
}

function SidebarInput({ className, ...props }: React.ComponentProps<typeof Input>) {
    return (
        <Input
            data-slot="sidebar-input"
            data-sidebar="input"
            className={cn('bg-background h-8 w-full shadow-none', className)}
            {...props}
        />
    );
}

function SidebarHeader({ className, ...props }: React.ComponentProps<'div'>) {
    return (
        <div
            data-slot="sidebar-header"
            data-sidebar="header"
            className={cn('flex flex-col gap-2 p-2', className)}
            {...props}
        />
    );
}

function SidebarFooter({ className, ...props }: React.ComponentProps<'div'>) {
    return (
        <div
            data-slot="sidebar-footer"
            data-sidebar="footer"
            className={cn('flex flex-col gap-2 p-2', className)}
            {...props}
        />
    );
}

function SidebarSeparator({ className, ...props }: React.ComponentProps<typeof Separator>) {
    return (
        <Separator
            data-slot="sidebar-separator"
            data-sidebar="separator"
            className={cn('bg-sidebar-border mx-2 w-auto', className)}
            {...props}
        />
    );
}

function SidebarContent({ className, ...props }: React.ComponentProps<'div'>) {
    return (
        <div
            data-slot="sidebar-content"
            data-sidebar="content"
            className={cn(
                'flex min-h-0 flex-1 flex-col gap-2 overflow-auto group-data-[collapsible=icon]:overflow-hidden',
                className,
            )}
            {...props}
        />
    );
}

function SidebarGroup({ className, ...props }: React.ComponentProps<'div'>) {
    return (
        <div
            data-slot="sidebar-group"
            data-sidebar="group"
            className={cn('relative flex w-full min-w-0 flex-col p-2', className)}
            {...props}
        />
    );
}

function SidebarGroupLabel({
    className,
    asChild = false,
    ...props
}: React.ComponentProps<'div'> & { asChild?: boolean }) {
    const Comp = asChild ? Slot : 'div';

    return (
        <Comp
            data-slot="sidebar-group-label"
            data-sidebar="group-label"
            className={cn(
                'text-sidebar-foreground/70 ring-sidebar-ring flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-medium outline-hidden transition-[margin,opa] duration-200 ease-linear focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0',
                'group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0',
                className,
            )}
            {...props}
        />
    );
}

function SidebarGroupAction({
    className,
    asChild = false,
    ...props
}: React.ComponentProps<'button'> & { asChild?: boolean }) {
    const Comp = asChild ? Slot : 'button';

    return (
        <Comp
            data-slot="sidebar-group-action"
            data-sidebar="group-action"
            className={cn(
                'text-sidebar-foreground ring-sidebar-ring hover:bg-sidebar-accent hover:text-sidebar-accent-foreground absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded-md p-0 outline-hidden transition-transform focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0',
                // Increases the hit area of the button on mobile.
                'after:absolute after:-inset-2 md:after:hidden',
                'group-data-[collapsible=icon]:hidden',
                className,
            )}
            {...props}
        />
    );
}

function SidebarGroupContent({ className, ...props }: React.ComponentProps<'div'>) {
    return (
        <div
            data-slot="sidebar-group-content"
            data-sidebar="group-content"
            className={cn('w-full text-sm', className)}
            {...props}
        />
    );
}

function SidebarMenu({ className, ...props }: React.ComponentProps<'ul'>) {
    return (
        <ul
            data-slot="sidebar-menu"
            data-sidebar="menu"
            className={cn('flex w-full min-w-0 flex-col gap-1', className)}
            {...props}
        />
    );
}

function SidebarMenuItem({ className, ...props }: React.ComponentProps<'li'>) {
    return (
        <li
            data-slot="sidebar-menu-item"
            data-sidebar="menu-item"
            className={cn('group/menu-item relative', className)}
            {...props}
        />
    );
}

const sidebarMenuButtonVariants = cva(
    'peer/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm outline-hidden ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-data-[sidebar=menu-action]/menu-item:pr-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[active=true]:bg-sidebar-accent data-[active=true]:font-medium data-[active=true]:text-sidebar-accent-foreground data-[state=open]:hover:bg-sidebar-accent data-[state=open]:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0',
    {
        variants: {
            variant: {
                default: 'hover:bg-sidebar-accent hover:text-sidebar-accent-foreground',
                outline:
                    'bg-background shadow-[0_0_0_1px_hsl(var(--sidebar-border))] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_hsl(var(--sidebar-accent))]',
            },
            size: {
                default: 'h-8 text-sm',
                sm: 'h-7 text-xs',
                lg: 'h-12 text-sm group-data-[collapsible=icon]:p-0!',
            },
        },
        defaultVariants: {
            variant: 'default',
            size: 'default',
        },
    },
);

function SidebarMenuButton({
    asChild = false,
    isActive = false,
    variant = 'default',
    size = 'default',
    tooltip,
    className,
    ...props
}: React.ComponentProps<'button'> & {
    asChild?: boolean;
    isActive?: boolean;
    tooltip?: string | React.ComponentProps<typeof TooltipContent>;
} & VariantProps<typeof sidebarMenuButtonVariants>) {
    const Comp = asChild ? Slot : 'button';
    const { isMobile, state } = useSidebar();

    const button = (
        <Comp
            data-slot="sidebar-menu-button"
            data-sidebar="menu-button"
            data-size={size}
            data-active={isActive}
            className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
            {...props}
        />
    );

    if (!tooltip) {
        return button;
    }

    if (typeof tooltip === 'string') {
        tooltip = {
            children: tooltip,
        };
    }

    return (
        <Tooltip>
            <TooltipTrigger asChild>{button}</TooltipTrigger>
            <TooltipContent
                side="right"
                align="center"
                hidden={state !== 'collapsed' || isMobile}
                {...tooltip}
            />
        </Tooltip>
    );
}

function SidebarMenuAction({
    className,
    asChild = false,
    showOnHover = false,
    ...props
}: React.ComponentProps<'button'> & {
    asChild?: boolean;
    showOnHover?: boolean;
}) {
    const Comp = asChild ? Slot : 'button';

    return (
        <Comp
            data-slot="sidebar-menu-action"
            data-sidebar="menu-action"
            className={cn(
                'text-sidebar-foreground ring-sidebar-ring hover:bg-sidebar-accent hover:text-sidebar-accent-foreground peer-hover/menu-button:text-sidebar-accent-foreground absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded-md p-0 outline-hidden transition-transform focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0',
                // Increases the hit area of the button on mobile.
                'after:absolute after:-inset-2 md:after:hidden',
                'peer-data-[size=sm]/menu-button:top-1',
                'peer-data-[size=default]/menu-button:top-1.5',
                'peer-data-[size=lg]/menu-button:top-2.5',
                'group-data-[collapsible=icon]:hidden',
                showOnHover &&
                    'peer-data-[active=true]/menu-button:text-sidebar-accent-foreground group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 data-[state=open]:opacity-100 md:opacity-0',
                className,
            )}
            {...props}
        />
    );
}

function SidebarMenuBadge({ className, ...props }: React.ComponentProps<'div'>) {
    return (
        <div
            data-slot="sidebar-menu-badge"
            data-sidebar="menu-badge"
            className={cn(
                'text-sidebar-foreground pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded-md px-1 text-xs font-medium tabular-nums select-none',
                'peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[active=true]/menu-button:text-sidebar-accent-foreground',
                'peer-data-[size=sm]/menu-button:top-1',
                'peer-data-[size=default]/menu-button:top-1.5',
                'peer-data-[size=lg]/menu-button:top-2.5',
                'group-data-[collapsible=icon]:hidden',
                className,
            )}
            {...props}
        />
    );
}

function SidebarMenuSkeleton({
    className,
    showIcon = false,
    ...props
}: React.ComponentProps<'div'> & {
    showIcon?: boolean;
}) {
    // Random width between 50 to 90%.
    const width = React.useMemo(() => {
        return `${Math.floor(Math.random() * 40) + 50}%`;
    }, []);

    return (
        <div
            data-slot="sidebar-menu-skeleton"
            data-sidebar="menu-skeleton"
            className={cn('flex h-8 items-center gap-2 rounded-md px-2', className)}
            {...props}
        >
            {showIcon && <Skeleton className="size-4 rounded-md" data-sidebar="menu-skeleton-icon" />}
            <Skeleton
                className="h-4 max-w-(--skeleton-width) flex-1"
                data-sidebar="menu-skeleton-text"
                style={
                    {
                        '--skeleton-width': width,
                    } as React.CSSProperties
                }
            />
        </div>
    );
}

function SidebarMenuSub({ className, ...props }: React.ComponentProps<'ul'>) {
    return (
        <ul
            data-slot="sidebar-menu-sub"
            data-sidebar="menu-sub"
            className={cn(
                'border-sidebar-border mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l px-2.5 py-0.5',
                'group-data-[collapsible=icon]:hidden',
                className,
            )}
            {...props}
        />
    );
}

function SidebarMenuSubItem({ className, ...props }: React.ComponentProps<'li'>) {
    return (
        <li
            data-slot="sidebar-menu-sub-item"
            data-sidebar="menu-sub-item"
            className={cn('group/menu-sub-item relative', className)}
            {...props}
        />
    );
}

function SidebarMenuSubButton({
    asChild = false,
    size = 'md',
    isActive = false,
    className,
    ...props
}: React.ComponentProps<'a'> & {
    asChild?: boolean;
    size?: 'sm' | 'md';
    isActive?: boolean;
}) {
    const Comp = asChild ? Slot : 'a';

    return (
        <Comp
            data-slot="sidebar-menu-sub-button"
            data-sidebar="menu-sub-button"
            data-size={size}
            data-active={isActive}
            className={cn(
                'text-sidebar-foreground ring-sidebar-ring hover:bg-sidebar-accent hover:text-sidebar-accent-foreground active:bg-sidebar-accent active:text-sidebar-accent-foreground [&>svg]:text-sidebar-accent-foreground flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 outline-hidden focus-visible:ring-2 disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0',
                'data-[active=true]:bg-sidebar-accent data-[active=true]:text-sidebar-accent-foreground',
                size === 'sm' && 'text-xs',
                size === 'md' && 'text-sm',
                'group-data-[collapsible=icon]:hidden',
                className,
            )}
            {...props}
        />
    );
}

export {
    Sidebar,
    SidebarContent,
    SidebarFooter,
    SidebarGroup,
    SidebarGroupAction,
    SidebarGroupContent,
    SidebarGroupLabel,
    SidebarHeader,
    SidebarInput,
    SidebarInset,
    SidebarMenu,
    SidebarMenuAction,
    SidebarMenuBadge,
    SidebarMenuButton,
    SidebarMenuItem,
    SidebarMenuSkeleton,
    SidebarMenuSub,
    SidebarMenuSubButton,
    SidebarMenuSubItem,
    SidebarProvider,
    SidebarRail,
    SidebarSeparator,
    SidebarTrigger,
    useSidebar,
};
